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29 .\" $Id: curs_border.3x,v 1.22 2010/12/04 18:36:44 tom Exp $
30 .TH curs_border 3X ""
31 .na
32 .hy 0
33 .SH NAME
34 \fBborder\fR,
35 \fBwborder\fR,
36 \fBbox\fR,
37 \fBhline\fR,
38 \fBwhline\fR,
39 \fBvline\fR,
40 \fBwvline\fR,
41 \fBmvhline\fR,
42 \fBmvwhline\fR,
43 \fBmvvline\fR,
44 \fBmvwvline\fR \- create \fBcurses\fR borders, horizontal and vertical lines
45 .ad
46 .hy
47 .SH SYNOPSIS
48 \fB#include <curses.h>\fR
49 .br
50 \fBint border(chtype ls, chtype rs, chtype ts, chtype bs,\fR
51 \fBchtype tl, chtype tr, chtype bl, chtype br);\fR
52 .br
53 \fBint wborder(WINDOW *win, chtype ls, chtype rs,\fR
54 \fBchtype ts, chtype bs, chtype tl, chtype tr,\fR
55 \fBchtype bl, chtype br);\fR
56 .br
57 \fBint box(WINDOW *win, chtype verch, chtype horch);\fR
58 .br
59 \fBint hline(chtype ch, int n);\fR
60 .br
61 \fBint whline(WINDOW *win, chtype ch, int n);\fR
62 .br
63 \fBint vline(chtype ch, int n);\fR
64 .br
65 \fBint wvline(WINDOW *win, chtype ch, int n);\fR
66 .br
67 \fBint mvhline(int y, int x, chtype ch, int n);\fR
68 .br
69 \fBint mvwhline(WINDOW *, int y, int x, chtype ch, int n);\fR
70 .br
71 \fBint mvvline(int y, int x, chtype ch, int n);\fR
72 .br
73 \fBint mvwvline(WINDOW *, int y, int x, chtype ch, int n);\fR
74 .br
75 .SH DESCRIPTION
76 The \fBborder\fR, \fBwborder\fR and \fBbox\fR routines
77 draw a box around the edges of a window.
78 Other than the window, each argument is a character with attributes:
79 .sp
80 .RS
81 \fIls\fR \- left side,
82 .br
83 \fIrs\fR \- right side,
84 .br
85 \fIts\fR \- top side,
86 .br
87 \fIbs\fR \- bottom side,
88 .br
89 \fItl\fR \- top left-hand corner,
90 .br
91 \fItr\fR \- top right-hand corner,
92 .br
93 \fIbl\fR \- bottom left-hand corner, and
94 .br
95 \fIbr\fR \- bottom right-hand corner.
96 .RE
97 .PP
98 If any of these arguments is zero, then the corresponding
99 default values (defined in \fBcurses.h\fR) are used instead:
100 .sp
101 .RS
102 \fBACS_VLINE\fR,
103 .br
104 \fBACS_VLINE\fR,
105 .br
106 \fBACS_HLINE\fR,
107 .br
108 \fBACS_HLINE\fR,
109 .br
110 \fBACS_ULCORNER\fR,
111 .br
112 \fBACS_URCORNER\fR,
113 .br
114 \fBACS_LLCORNER\fR,
115 .br
116 \fBACS_LRCORNER\fR.
117 .RE
118 .PP
119 \fBbox(\fR\fIwin\fR\fB, \fR\fIverch\fR\fB, \fR\fIhorch\fR\fB)\fR is a shorthand
120 for the following call: \fBwborder(\fR\fIwin\fR\fB,\fR \fIverch\fR\fB,\fR
121 \fIverch\fR\fB,\fR \fIhorch\fR\fB,\fR \fIhorch\fR\fB, 0, 0, 0, 0)\fR.
122 .PP
123 The \fBhline\fR and \fBwhline\fR functions draw a horizontal (left to right)
124 line using \fIch\fR starting at the current cursor position in the window. The
125 current cursor position is not changed. The line is at most \fIn\fR characters
126 long, or as many as fit into the window.
127 .PP
128 The \fBvline\fR and \fBwvline\fR functions draw a vertical (top to bottom) line
129 using \fIch\fR starting at the current cursor position in the window. The
130 current cursor position is not changed. The line is at most \fIn\fR characters
131 long, or as many as fit into the window.
132 .SH RETURN VALUE
133 All routines return the integer \fBOK\fR. The SVr4.0 manual says "or a
134 non-negative integer if \fBimmedok\fR is set", but this appears to be an error.
135 .PP
136 X/Open does not define any error conditions.
137 This implementation returns an error
138 if the window pointer is null.
139 .PP
140 Functions with a "mv" prefix first perform a cursor movement using
141 \fBwmove\fP, and return an error if the position is outside the window,
142 or if the window pointer is null.
143 .SH NOTES
144 The borders generated by these functions are \fIinside\fR borders (this
145 is also true of SVr4 curses, though the fact is not documented).
146 .PP
147 Note that \fBborder\fR and \fBbox\fR may be macros.
148 .SH PORTABILITY
149 These functions are described in the XSI Curses standard, Issue 4.
150 The standard specifies that they return \fBERR\fR on failure,
151 but specifies no error conditions.
152 .SH SEE ALSO
153 \fBcurses\fR(3X), \fBcurs_outopts\fR(3X).